Hose clamp



March 10, 1 931. H, E, DENN|E 1,796,006

HOSE CLAMP yFiled Maron e. 1930 Patented Mar. 10, 1931'` filial@ HOSE CLAD/[E Application filed March 6,

My invention relates more particularly to clamps for connecting flexible hose to the jointed metal couplers of a pipe especially for use in the conveying of high pressure fluid such as water; an example of the use of such apipe being for the conducting of water under very high pressure into the rotary drill pipe of oil-well-drilling apparatus.

` My primary object is to provide a clamp of such construction that the flexible hose will be retained, against leakage, o-n the coupler in the use of the pipe for conducting fluid under high pressure.

Another object is to provide a simple and economical construction of such a clamp and by which the hose may be readily applied to the coupler.

Referring to the accompanying drawings:

Figure 1 is a view in side elevation of a pipe-coupler member having a hose, shown partly broken away, secured thereto in accordance with my invention.

Figure 2 is a plan view of the structure shown in Fig. 1.

Figure 3 is a view inside elevation of the coupler of the preceding figures.

Figure 4 is an end view of the structure shown in Figs. l and 2, the structure being viewed from the left-hand side of these figures.

Figure 5 is a section taken at the line 5-5 on Fig. 4 and viewed in the direction of the arrows; and

Figure 6, a broken section taken at the line 6-6 on Fig. 2 and viewed in the direction of the arrows.

In the construction shown 6 represents a metal coupler shown as threaded at one end as represented at 7 for connection with a similar Y coupler member in accordance with common practice, the member 7 being shown as provided with an annular flange 8 and beyond this flange with a portion 9 for insertion into the hose to be clamped to the member 7, the hose, which is lcommonly so-called rubber hose, being represented at 10, the portion 9 being provided at intervals with annular grooves 11, for a purpose hereinafter described. v

The clamp, according to the particular 1930. Serial No. 433,791.

illustrated embodiment of my invention, comprises platelike members 12 positioned at opposite sides of the hose 10 and each provi-ded at one end with an inwardly extending lip 13 which overlaps the flange 8 as shown, each of these plates at the portions thereof between its lateral edges being curved transversely as represented at 14, concentrically of the hose 10. The marginal edge portions of the plates represented at 15 extend preferably substan- .f'

tially parallel with each other as represented in Figs. 4 and'5, and the inner surfaces of the curvedportions 14 of the plates 12 con tain grooves 14a spaced apart alongthese plates and extending crosswise of the latter. y rlhe clamp also comprises a plurality of U-bolts, but which if desired may be of flexible construction, as for example in the form of cables, adjacent ones of these elements 16 it in place on the portion 9 of the coupler.

The U-shaped elements 16 are of such size that each snugly fits against the hose 10 throughout substantially one-half of the circumference of the latter, and they are preferably arranged in pairs as shown particularly in Fig. 1, the members of each pair extending preferably close together as shown and extending in opposite directions so that one of the elements 16 of each pair clamps'the hose substantially throughout onehalf of its circumference and the other element thereof clamps the hose at the remaining portion of its circumference.

Preferably the holes in the plates 12 for the ends of the elements 16 are spaced apart a distance slightly less than the inside diameter of the relements 16, as shown, whereby to ensure sufcient approach to uniform clamping of the hose throughout its circumt ference by the oppositely extending elements f "hl-shaped elements 16 shown as in the form of is thereby enhanced, the interlock ot the iianges 13 or" the plates 12, with the flange 8 oi the Coupler aiding in preventing the longitudinal separation oi the coupler and theVV hose when subjected to very high internal pressure.

ln the assembling ont the clamp With a hose, the plates 12 and elements 16 are preterably lirst assemblodiyith each other, and such assembly assembled with the hose by sliding the assembly upon the hose and, with the hose positioned on the portion Q oi" the coupler, the ents 16 then properly the hose.

1n this connection the provision ot the grooves 14" is of advantage. rlliese grooves are disposed in reg' ation with the curved portions ot' the elements 16. as shown, these curved portions extending -nto these grooves in the conditioning of the clamp tor application to the hose, thereby preventing canting ot toe elements 16 and thus objectionable interference with the sliding ot the clamp onto the hose in the assembling oit these Darts.

tightened to l.Vhile 1 have illustrated and described a' particular construction embodying my invention, I do not Wish to be understood intenoing to limit it tnereto es the same may be variously modiiied and altered Without departing from the spirit of my invention.

What I claim as new, and desire to secure by Letters Patent, is:

1. The combination of coupler having a portion or insertion into a hose, a hose surrounding said portion, and a clamp for clamping said hose to said portion comprising U-shaped elements positioned crosswise on said hose and clamping the latter and extending in opposite directions.

2. The combination of a coupler having a vportion for insertion into a hose, a hose surrounding said portion, and a clamp for clamping said hose to said portion comprisira' 'ti-shaped elements positioned crossWise on said hose and clamping the latter and eX- tending in opposite directions and closely adjacent each other.

3. rlhe combination oft a coupler having a portion Jfor insertion into a. hose, a hose surrounding said portion, and a clamp Jfor clamping said hose to said portion comprising pairs ot U-shaped elements positioned crosswise on said hose and clamping the lat` ter, the members or" each pair being located adjacent each other and extending in opposite directions.

4. The combination of a coupler having a portion 'lor insertion into a hose, a hose surrounding said portion, a clamp for clamping said hose to said portion comprising lil-shaped elements positioned crosswise on said hose and clamping the latter and extending in opposite directions, and means tor dra-Wing said members into clamping position on said hose.

5. rlfhe combinationot a coupler having a portion for insertion into hose and provided with circumferential grooves, a hose surrounding said portion and a clamp for clamping said hose to said portion comprising lol-shapes. elements positioned crossivise on said hose and clan'iping the latter, said ele-` ments registering with said grooves and extending in opposite directions. y

6. The combination of a coupler having a portion for insertion into a hose, a hose surrounding said portion, and a clamp for clamping said hose to said portion comprising E15-shaped elements positioned crossWise 0nV sa: hose andclamping the latter and extending in opposite directions and closely adjacent each other, and for drawing said elements into clamping position on saidrhose.

'i'. The combination of. acoupler` having a portion for insertion into ahose, a hose surrounding said portion, and a clamp for clamping said hose to said portion comprising Ed-shaped elements positioned crossivise on said hose and eid-ending in opposite directions, means at opposite sides ot the hose for anch ringv said'elements.

S.V rlhe combination oi a coupler having a portion tor insertion into a hose, ahose surrounding said portion, and a clamp tor clamping said hose to said portion comp-rising lol-shaped elements Vpositioned erosswise on said hose and extending in opposite directions, plates at oppOsitesides of the hose, Vand means engagingsaid platesand said elements for drawing said elements into clamping position on said hose.

9. The combination of a coupler ha-vi-ngfa portion for insertion into a hose, a hose surrounding said portion, and a clamp tor Clamping said hose to said portion comprising til-shaped elements positioned crosswise on said hose andr extending iii-opposite directions, plates at opposite sides of the hose and containing openings through Which said elements extend, and nuts screivedron the legs of said elements and against said plates, for the purpose set forth.

10. The combination of acoupler. having a portion for insertion into a hose, a hose surrounding said portion, and a clamp for clamping said hose to said portion comprising U-shaped elements positioned crosswise on said hose and extending` in opposite directions, means at opposite sides of the hose. for anchoring said elements, andineans tor preifi rounding said portion, and a clamp for clamping said hose to said portion comprising til-shaped elements positioned crosswise ony said hose and extending in opposite directions, plates at opposite sides of the hose, means engaging said plates and said elements for drawing said elements into clamping position on said hose, and mutually engaging abutment surfaces on said coupler and plates for anchoring said plates to said coupler.

l2. A hose-clamp comprising U-shaped elements extending in opposite directions and adapted to be positioned. over a hose, and a structure adapted to be positioned to extend at opposite sides of the hose and to Which said elements are anchored.

13. A hose-clamp comprising U-shaped elements extending in opposite directions and adapted to be positioned over a hose, a structure adapted to be positioned to extend at opposite sides of the hose, and means engaging the ends of said elements and saidstructure :tor drawing said elements into clamping position on the hose.

i4. A. hose-clamp comprising itl-shaped elements extending in opposite directions and adapted to be positioned over a hose, and

plates adapted to be positioned to extend at opposite sides of the hose and to Which said elements are anchored.

15. rEhe combination of a coupler having a portion for insertion into a hose, a hose surrounding said portion, and a clamp for clamping said hose to said portion comprising U-shaped elements positioned crossvvise on said hose and clamping the latter and extending in opposite directions, the ends of said elements being spaced apart a distance less than thev outside diameter of said hose.

16. The combination of a coupler having surrounding said portion, and a clamp for clamping said hose to said portion comprising U-shaped elements positioned crosswise on said hose and extending in opposite directions, plates at opposite sides oi the hose, and. means engaging said plates and said elements for drawing-.said elements into clamping position on said hose the ends of said elements being spaced apart a distance less than the outside diameter of said hose.

1'?. The combination of a coupler having a portion for insertion into a hose, a hose surrounding said portion, and a. clamp for clamping said hose to said portion comprising til-bolts positioned crosswise of said hose and amending in opposite directions, plates said elements into clamping position on said hose, said openings being spaced apart a distance less than the inside diameter 01"' said i8. rlhe combination of a coupler having a portion for insertion into a hose, a hose surrounding said portion, anda clamp for clamping said hose to said portion comprising iS-bolts positioned crossvvise of said hose and extending in opposite directions, plates at opposite sides of said hose, said plates containing grooves on their inner surfaces for receiving the curved portions oi"- said bolts, and means engaging said plates and said elements for drawing said elements into clamping position on said hose.

19. A. hose-clamp comprising U-bolts extending in'opposite directions and adapted to be positioned over a hose, a structure adapted to be positioned to extend at opposite sides of the hose,. and means engaging the ends of said bolts and said structure for drawing said bolts into clam ing )osition on the hose said a u C n s a plates containinff1 grooves on their inner sur faces adapted to receive the curved portionsA of said bolts.

20. A hose-clamp comprising U-bolts extending in opposite directions and adapted to be positioned over a hose, and plates adapted to be positioned to extend at opposite sides of the hose and towhich said bolts are anchored, said plates containing grooves on their inner surfaces adapted to receive the curved portions of said bolts.

HARRY E. DENNIE. 

